Newcastle United star Kieron Dyer has lost his appeal against a speeding conviction.

Dyer was convicted after police recorded him driving at 80mph in a 50mph zone, but his legal team argued the conviction was not safe.

The midfielder had overtaken an unmarked police motorcycle in his BMW on the A1 near Lincolnshire.

He was recorded doing an average of 80.29mph on a Vascar radar device and was found guilty of speeding by Grantham magistrates.

Yesterday at Lincoln Crown Court a barrister representing the footballer, who did not attend court, argued the Vascar radar device was unreliable and claimed there had been two abuses of the legal process.

But Judge John Machin, sitting with two magistrates, rejected the appeal.

He reimposed the original sentence of a &#xA3;500 fine, &#xA3;250 in costs and six penalty points, with an extra &#xA3;900 costs.